Multichannel magnetic analyzer for pulsed plasma sources
We constructed, calibrated, and used a simple multichannel magnetic analyzer for pulsed plasma-target production studies. With time-of-flight resolution of velocity, the channel signals unfolded to yield a measurement of each of the present ion-energy-distribution functions. Measurements made with a narrow-slit, high-gain electron multiplier detector allowed clearly resolved identification of each major ion species. However, because of the uncertainty of secondary-emission detection efficiency for high-q ions, we made all absolute signal measurements with a wider entrance slit and an array of Faraday-cup detectors. The latter arrangement was calibrated with an H/sup +/ beam of known adjustable energy. We describe how this instrument can determine N/sup +/ to N/sup 7 +/ and H/sup +/ ion-distribution functions for a CO/sub 2/ laser pulse incident on an NH/sub 3/ pellet.
- Research Organization:
- California Univ., Livermore (USA). Lawrence Livermore Lab.
- OSTI ID:
- 6683593
- Report Number(s):
- UCID-17806
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
700208 -- Fusion Power Plant Technology-- Inertial Confinement Technology
AMMONIA
BEAM ANALYZERS
CALIBRATION
CARBON DIOXIDE LASERS
CATIONS
CHARGED PARTICLES
DISTRIBUTION FUNCTIONS
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
ENERGY SPECTRA
GAS LASERS
HYDRIDES
HYDROGEN COMPOUNDS
HYDROGEN IONS
HYDROGEN IONS 1 PLUS
IONS
LASER RADIATION
LASER TARGETS
LASER-PRODUCED PLASMA
LASERS
MAGNETIC ANALYZERS
MULTI-CHANNEL ANALYZERS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NITROGEN IONS
PERFORMANCE
PLASMA
PLASMA DIAGNOSTICS
PULSE ANALYZERS
RADIATIONS
SPECTRA
TARGETS
TIME-OF-FLIGHT METHOD
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
700208 -- Fusion Power Plant Technology-- Inertial Confinement Technology
AMMONIA
BEAM ANALYZERS
CALIBRATION
CARBON DIOXIDE LASERS
CATIONS
CHARGED PARTICLES
DISTRIBUTION FUNCTIONS
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
ENERGY SPECTRA
GAS LASERS
HYDRIDES
HYDROGEN COMPOUNDS
HYDROGEN IONS
HYDROGEN IONS 1 PLUS
IONS
LASER RADIATION
LASER TARGETS
LASER-PRODUCED PLASMA
LASERS
MAGNETIC ANALYZERS
MULTI-CHANNEL ANALYZERS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NITROGEN IONS
PERFORMANCE
PLASMA
PLASMA DIAGNOSTICS
PULSE ANALYZERS
RADIATIONS
SPECTRA
TARGETS
TIME-OF-FLIGHT METHOD